
/*获取时间戳*/
export function timestamp(){
    return new Date().getTime();
}

export var ONE_MINUTE = 60000;
export var ONE_HOUR = 3600000;
export var ONE_DAY = 86400000;
export var ONE_WEEK = 604800000;

export var ONE_SECOND_AGO = "秒前";
export var ONE_MINUTE_AGO = "分钟前";
export var ONE_HOUR_AGO = "小时前";
export var ONE_DAY_AGO = "天前";
export var ONE_MONTH_AGO = "月前";
export var ONE_YEAR_AGO = "年前";


export function toSeconds(date) {
    return parseInt(date / 1000);
}

export function toMinutes(date) {
    return parseInt(toSeconds(date) / 60);
}

export function toHours(date) {
    return parseInt(toMinutes(date) / 60);
}

export function toDays(date) {
    return parseInt(toHours(date) / 24);
}

export function toMonths(date) {
    return parseInt(toDays(date) / 30);
}

export function toYears(date) {
    return parseInt(toMonths(date) / getYearDays());
}

export function getYearDays() {
    var year = new Date().getYear();
    if (year % 4 == 0 && year % 100 != 0 || year % 400 == 0) {//闰年的判断规则
        return 366;
    } else {
        return 365;
    }
}

/**
 * 计算时间间隔
 * @param date
 * @returns {*}
 */
function timeDifference(date) {
    var time = date;
    time = time.replace(new RegExp("-", "gm"), "/");
    var times = (new Date(time)).getTime();
    var delta = new Date().getTime() - times;
    if (delta < 1 * ONE_MINUTE) {
        var seconds = toSeconds(delta);
        return (seconds <= 0 ? 1 : seconds) + ONE_SECOND_AGO;
    }
    if (delta < 60 * ONE_MINUTE) {
        var minutes = toMinutes(delta);
        return (minutes <= 0 ? 1 : minutes) + ONE_MINUTE_AGO;
    }
    if (delta < 24 * ONE_HOUR) {
        var hours = toHours(delta);
        return (hours <= 0 ? 1 : hours) + ONE_HOUR_AGO;
    }
    if (delta < 48 * ONE_HOUR) {
        return "昨天";
    }
    if (delta < 30 * ONE_DAY) {
        var days = toDays(delta);
        return (days <= 0 ? 1 : days) + ONE_DAY_AGO;
    }
    if (delta < 12 * 4 * ONE_WEEK) {
        var months = toMonths(delta);
        return (months <= 0 ? 1 : months) + ONE_MONTH_AGO;
    } else {
        var years = toYears(delta);
        return (years <= 0 ? 1 : years) + ONE_YEAR_AGO;
    }
}

/**
 * 格式化时间
 * @param now
 * @param mask
 * @returns {string|XML|void|*}
 * @constructor
 */
export function FormatDate(now, mask) {
    var d = new Date(now);
    ;
    var zeroize = function (value, length) {
        if (!length) length = 2;
        value = String(value);
        for (var i = 0, zeros = ''; i < (length - value.length); i++) {
            zeros += '0';
        }
        return zeros + value;
    };

    return mask.replace(/"[^"]*"|'[^']*'|\b(?:d{1,4}|m{1,4}|yy(?:yy)?|([hHMstT])\1?|[lLZ])\b/g, function ($0) {
        switch ($0) {
            case 'd':
                return d.getDate();
            case 'dd':
                return zeroize(d.getDate());
            case 'ddd':
                return ['Sun', 'Mon', 'Tue', 'Wed', 'Thr', 'Fri', 'Sat'][d.getDay()];
            case 'dddd':
                return ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'][d.getDay()];
            case 'M':
                return d.getMonth() + 1;
            case 'MM':
                return zeroize(d.getMonth() + 1);
            case 'MMM':
                return ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'][d.getMonth()];
            case 'MMMM':
                return ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'][d.getMonth()];
            case 'yy':
                return String(d.getFullYear()).substr(2);
            case 'yyyy':
                return d.getFullYear();
            case 'h':
                return d.getHours() % 12 || 12;
            case 'hh':
                return zeroize(d.getHours() % 12 || 12);
            case 'H':
                return d.getHours();
            case 'HH':
                return zeroize(d.getHours());
            case 'm':
                return d.getMinutes();
            case 'mm':
                return zeroize(d.getMinutes());
            case 's':
                return d.getSeconds();
            case 'ss':
                return zeroize(d.getSeconds());
            case 'l':
                return zeroize(d.getMilliseconds(), 3);
            case 'L':
                var m = d.getMilliseconds();
                if (m > 99) m = Math.round(m / 10);
                return zeroize(m);
            case 'tt':
                return d.getHours() < 12 ? 'am' : 'pm';
            case 'TT':
                return d.getHours() < 12 ? 'AM' : 'PM';
            case 'Z':
                return d.toUTCString().match(/[A-Z]+$/);
            // Return quoted strings with the surrounding quotes removed
            default:
                return $0.substr(1, $0.length - 2);
        }
    });
};